2211201100 has 72 divisors (see below), whose sum is σ = 4852050560. Its totient is φ = 874644480.

The previous prime is 2211201061. The next prime is 2211201103. The reversal of 2211201100 is 11021122.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (2211201103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5106484 + ... + 5106916.

Almost surely, 2^2211201100 is an apocalyptic number.

2211201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211201100 is an abundant number, since it is smaller than the sum of its proper divisors (2640849460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2211201100 is a wasteful number, since it uses less digits than its factorization.

2211201100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899 (or 892 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2211201100 is about 47023.4101272972. The cubic root of 2211201100 is about 1302.7949923933.

Adding to 2211201100 its reverse (11021122), we get a palindrome (2222222222).

The spelling of 2211201100 in words is "two billion, two hundred eleven million, two hundred one thousand, one hundred".